<http://schema.org/description>
"The invention of the DVD changed the media industry in ways that were unimaginable just a few decades earlier -- from the way media is produced and marketed to the way it generates revenue. What are some other effects of DVDs on the film industry?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://people.howstuffworks.com/culture-traditions/tv-and-culture/10-ways-dvds-changed-film-industry8.htm>